Modifiers matching moment:

• romantic,
• historical,
• ceremonial,
• crucial,
• statistical,
• turbulent,
• relevant,
• critical,
• special,
• changing,
• joyful,
• private,
• shocking,
• big,
• structured,

Simple categories matching joyful:

• event,
• times,
• season,
• moment,
• celebration,
• occasion,